I think that we are talking about relative poverty here in the UK, rather than the absolute kind. However, Save the Children has produced a report which shows that a worrying number of children here in the UK don't have things such as a winter coat which most of us would probably think of as essentials, even if life doesn't depend on them.
Worryingly, the majority of these children (according to STC) have parents who are in work, but struggle with the high costs of childcare and often, with paying off debts, typically taken out with payday loan companies or doorstep lenders.
The growth of food banks is another indicator that people are falling through the net, and that the role once carried out by the welfare state is now being taken up by churches and charities. I suppose this state of affairs will only get worse as the promised next round of cuts comes into force.
I agree with you janeainsworth in that this is really the government's repsonsibility. There is a lot that could be done, for example, cutting the cost of childcare for the working poor. In the meantime, as like Huckleberry Finn, I have plenty of the kind of time that isn't money, I help out at a local credit union in the hope of at least keeping some poor souls out of the hands of loan sharks.